The LCM of 9b and 12 b is 36b. LCM is Least Common Multiple.
The GCF is 9b.
They are 1, 2, 3, 4, 6, 9, 12, 18, 36,1a, 2a, 3a, 4a, 6a, 9a, 12a, 18a, 36a,1b, 2b, 3b, 4b, 6b, 9b, 12b, 18b, 36b,1a2, 2a2, 3a2, 4a2, 6a2, 9a2, 12a2, 18a2, 36a2,1ab, 2ab, 3ab, 4ab, 6ab, 9ab, 12ab, 18ab, 36ab,1b2, 2b2, 3b2, 4b2, 6b2, 9b2, 12b2, 18b2, 36b2.
You would factor 3a + 9b as: 3(a+3b)
3b+6b=9b
3A + 9B = 3(A + 3B)
(6ab + 9b)/(2a + 3) = 3b(2a + 3)/(2a + 3) = 3b
If you mean: (3b+7)^2 then it is 9b^2+42b+49
Here is an example of factorising:3ab+9bThe answer would be: 3b(a+3)First, in 3ab+9b, you have to find LIKE TERMS. Like Terms are numbers, letters, etc. that are present in both the 'sides' (3ab is one side, 9b is the other). b is present in both. Now, you may be wondering about the 3 in the answer - this one: 3b(a+3). This 3 is here because it is the highest common factor for both 3 and 9 in (3ab+9b). In other words, three goes into both 9 and 3.9 divided by 3 = 3 (this part - 3b(a+3) )3 divided by 3 = 1 (this part - 3b(a+3) )You don't need to put 1a, just a, because they are the same.I hope you understood this. If not, get your teacher or a friend to explain it :)Meanwhile, test yourself with these:4ab+3a7b+28ab6ab2 + 7a2 b (this one's harder!)
(12a+9b)(12a-9b)
It is not an equation but an algebraic expression that can be simplified to: 12b-5a
b2(9b-8)
The LCM of 9b and 12 b is 36b. LCM is Least Common Multiple.
(2b - 5)(b + 7)
a + b = 14, so a = 14 - b; 6a - 3b = 3;substitute: 6(14 - b) - 3b = 3, ie 84 - 6b - 3b = 3, ie 81 = 9b so b = 9 and a = 5